Triribbed-functionalized Clathrochelate Iron(II) Dioximates As A New ...

Clipboard, Search History, and several other advanced features are temporarily unavailable. Skip to main page content

The .gov means it’s official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation Search: Search Advanced Clipboard Save Email Send to

• Clipboard
• My Bibliography
• Collections
• Citation manager

Display options Display options Format Abstract PubMed PMID

Save citation to file

Format: Summary (text) PubMed PMID Abstract (text) CSV Create file Cancel

Email citation

Email address has not been verified. Go to My NCBI account settings to confirm your email and then refresh this page. To: Subject: Body: Format: Summary Summary (text) Abstract Abstract (text) MeSH and other data Send email Cancel

Add to Collections

• Create a new collection
• Add to an existing collection

Name your collection: Name must be less than 100 characters Choose a collection: Unable to load your collection due to an error Please try again Add Cancel

Add to My Bibliography

• My Bibliography

Unable to load your delegates due to an error Please try again Add Cancel

Your saved search

Name of saved search: Search terms: Test search terms Would you like email updates of new search results? Saved Search Alert Radio Buttons

• Yes
• No

Email: (change) Frequency: Monthly Weekly Daily Which day? The first Sunday The first Monday The first Tuesday The first Wednesday The first Thursday The first Friday The first Saturday The first day The first weekday Which day? Sunday Monday Tuesday Wednesday Thursday Friday Saturday Report format: Summary Summary (text) Abstract Abstract (text) PubMed Send at most: 1 item 5 items 10 items 20 items 50 items 100 items 200 items Send even when there aren't any new results Optional text in email: Save Cancel

Create a file for external citation management software

Create file Cancel

Your RSS Feed

Name of RSS Feed: Number of items displayed: 5 10 15 20 50 100 Create RSS Cancel RSS Link Copy

Actions

CiteCollectionsAdd to Collections

• Create a new collection
• Add to an existing collection

Name your collection: Name must be less than 100 characters Choose a collection: Unable to load your collection due to an errorPlease try again Add Cancel PermalinkPermalinkCopyDisplay options Display options Format AbstractPubMedPMID

Page navigation

• Title & authors
• Abstract
• Publication types
• MeSH terms
• Substances
• LinkOut - more resources

Title & authors Abstract Publication types MeSH terms Substances LinkOut - more resources CiteDisplay options Display options Format AbstractPubMedPMID

Abstract

Template condensation on iron(II) ion of dichloroglyoxime (H2C12Gm) with (C6H5O)3, n-C4H9B(O-n-C4H9)2, and BF3.O(C2H5)2 in CH3NO2 afforded reactive clathrochelate precursors Fe(C12Gm)3(BC6H5)2 (2), Fe(C12Gm)3(B-n-C4H9)2 (3), and Fe(C12Gm)3(BF)2 (4). A series of triribbed-functionalized clathrochelate dioximates have been synthesized. Reaction of 2 with C6H5SH/K2CO3 and CH3SH/t-C4H9OK in 1,4-dioxane and THF afforded Fe((C6H5S)2Gm)3(BC6H5)2 (5) and Fe((CH3S)2Gm)3(BC6H5)2 (6). Reaction of 3 with C6H5OK in THF afforded Fe((C6H5O)2Gm)3(B-n-C4H9)2 (7). Condensation of 3 with bis(2-(o-oxyphenoxy))diethyl ether in THF afforded di- and tricrown etheric Fe(CwGm)2(C12Gm)(Bn-C4H9)2 (8) and Fe(CwGm)3(B-n-C4H9)2 (9) clathrochelates. Condensation of 3 with 3,5-dithiaoctane-1,8-dithiol/Cs2CO3 in DMF afforded the thiocrown etheric Fe((12anS4)Gm)3(BC6H5)2 complex (10). Reaction of 2 with n-butylamine in DMF resulted in the tetrasubstituted Fe((n-C4H9NH)2Gm)2(C12Gm)(BC6H5)2 clathrochelate (11). The clathrochelates obtained have been characterized both on the basis of elemental analysis, FAB and PD mass spectrometry, IR, UV-vis, 57Fe Mössbauer, and NMR spectroscopies and crystallographically (compounds 3, 4, 6, 7, and 11). An encapsulated iron(II) ion in a distorted trigonal-prismatic environment of six nitrogen atoms of the macrobicyclic ligand was found to be in a low-spin state. The cyclic voltammograms for the complexes 2-11 show irreversible oxidation waves assignable to Fe3+/Fe2+ couples. The correlation of E1/2 for these couples with Hammet sigma para constants for substituents in dioximate fragments has been demonstrated.

PubMed Disclaimer

Publication types

• Research Support, Non-U.S. Gov't Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search

MeSH terms

• Biocompatible Materials / chemical synthesis* Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Crystallography, X-Ray Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Electrochemistry Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Ferrous Compounds / chemical synthesis* Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Ferrous Compounds / chemistry Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Magnetic Resonance Spectroscopy Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Polycyclic Compounds / chemical synthesis* Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Polycyclic Compounds / chemistry Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search

Substances

• Biocompatible Materials Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Ferrous Compounds Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search
• Polycyclic Compounds Actions
  • Search in PubMed
  • Search in MeSH
  • Add to Search

LinkOut - more resources

• Other Literature Sources

  • The Lens - Patent Citations Database

• Miscellaneous

  • NCI CPTAC Assay Portal

[x] Cite Copy Download .nbib .nbib Format: AMA APA MLA NLM Send To

• Clipboard
• Email
• Save
• My Bibliography
• Collections
• Citation Manager

[x]

NCBI Literature Resources

MeSH PMC Bookshelf Disclaimer

The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). Unauthorized use of these marks is strictly prohibited.